Thermostatic pressure-valve.



M. LEWLESS.

THEBMOSTATIG PRESSURE VALVE.

APPLICATION FILED JAN.28,1914.

Patented July 14, 19m

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MILD RED LEWLESS, OF NEW YORK, N. Y.

THERMOSTATIC PRESSURE-VALVE it is here explained that the valve is designed for use with other heating systems or storage devices wherein it is preferable or necessary to automatically cut off a supply of fluid matter, and in the present instance to cut off the supply of fuel to a burner for the heater.

r-rnother object of the invention is to pro-.

vide a compact and thoroughly reliable automatically operating valve which is particularly adapted for operation under increasing pressure due to the increase in the temperature of a body of water contained in the radiator so that the supply of gas or other fuel to the burner of a portable radiator heater maybe automatically regulated to maintain the water at a uniform temperature and to maintain a uniform generation of steam, while means are also provided for facilitating, the filling of the radiator for determining the height of the water therein.

Vith the above and other objects in view, the invention resides in the peculiar combination and arrangement of parts to be hereinafter more fully described, illustrated and claimed, itbeing also an object to provide a device which is simple in construction, durable and efiicient in operation and not likely to get out of working order.

Referenceis to be had to the accompanying drawings forming a part of this specification, in which similar characters of reference indicate eorrespondingparts in all the views, and in which Figure 1 is a top elevation of the improved valve connected to a radiator and heater therefor; Fig. 2 is a vertical sectional view taken onthe line 22 of Fig. 1 and looking in the, directionindica-ted by the arrow; Fig. 3 is a sectional view taken centrally at right angles to Fig. 2; and Fig. 4 is a horizontal sectional view taken on the line 4-4 of Fig.

Specification of Letters Patent.

Application filed January 28, 1914.

Patented July 14, 19 11. Serial No. 814,926.

2 and looking in the direction indicated by the arrow.

In the illustrated embodiment of the invention the numeral 10 indicates aradiator which comprises a plurality of sections 11 adapted to contain water and communicating through a common connecting pipe 12 through which the water is supplied to the several sections composing the radiator by'a local or other system of supply. .In the use of the device the lower'portion of the radi= ator is inclosed by a casing 13 having portions 14 fitting between the sections so as to prevent the escape of the heat generated beneath the radiator and thereby secure a maximum heating of the water contained in the radiator. The specific construction of this casing or portable radiator base forms the subject matter of a copending application and further consists of angular pieces 15 having integral or attached feet 16 by which the casing issupported in spaced relation to the floor. A bottcm 17' is supported upon the angular pieces and the legs 18 of the radiator, which snugly fits within the casing, rest on the bottom in such supported position. By means of upturned portions 19 openings are provided at either side of the bottom 17 so as to allow the escape of air into the combustion chamber beneath the radiator in which a burner 20 shown in the form of a tubular apertured member supported in apertures in the ends of the casin is provided. An auxiliary bottom 21 is sup ported at a spaced distance from the main bottom to provide an air space, so as to prevent undue heating of the floor.

The present device connects with the usual pipe 12 so as to be automatically actuated due toincreased pressure caused by the expansion of the water in the radiator, or vice versa, and comprises a relatively fiat valve "casing 22 formed of a section 23 having a threaded attaching extension 24 extending laterally therefrom for attachment to the pipe 12 whereby communication is estab lished with the interior of the valve casing. The other section of the valve casing is indicated by the numeral 25 and both casing sections are provided with apertured flanges 26 removably connected as shown at 27, whereby a flexible diaphragm 28 may be mounted between the sections and readily renewed when necessary. Carried by the section 25 oft-he valve casing and preferably formed integrally therewith is anauxiliary valve casing 29 which is connected horizontally with an .inlet or'supply pipe 30 for suitable fuel such as gas, the supply being regulated by means of a valve 31.

It is here explained that kerosene, gasolene or any other kind of fuel may be substi tuted for gas which has been designated, but such fuel is discharged through an outlet pipe 32 which leads to an annular mixing chamber 33 supported inhorizontal alinement with the burner through one end of the casing. control the supply of fuel exuding from the pipe 32 into the mixing chamber 33. The

valve 34 1s removably mounted in the endmix with the gas or fuel which, when it strikes the curved wall 40, will be given a whirling motion so as to cause the thorough carbonization thereof in such amanner as to produce a greater heat for a predetermined quantity of fuel. A deflecting strip 41 traverses the casing of the mixing chamber vertically for contact by the discharge of fuel so as to insure thorough atomization and carbonization in addition to the angular formation of the mixing chamber, the fuel finally escaping in the form of gas through the burner openings.

In order to control the quantity of fuel or gas supplied to the burner when the valves 31 and 34 are properly regulated through the use of the device, a cylindrical valve 42. is provided, the same operating through the casing section 25 and loosely fittingavalve seat43 in the auxiliary valve casing 29 and being removably connected to the diaphragm 28 by means of a fastening screw 44. This fastening screw passes through the diaphragm and into the valve 42 while plates o'r'washers 45 are mounted on either side of the diaphragm to prevent destruction of the latter and to form a better anchor for the attaching means for securing the valve to the diaphragm. A leaf spring 46 is mounted between one of the washers 45 and the valve and has its curved free ends 47 contacting with the inner face of the casing section 25 so as to normally open the valve 42 and cause the diaphragm to assume the position shown in Fig. 3 of the drawings when relieved of excessive pressure. The

valve casing proper has leading from its sec-- tion 23 upper and lower horizontal exten- A needle valve 34 is provided to sions 48 terminating in globular portions 49 to oppositely extended threaded portions of which a glass gage 50 is removably coupled, as shown at 51, so as to permit the determination of the height of the water in the radiator or reservoir to which the device is attached. A filling cup 52 connects with the upper extension for the purpose of supplying the'water to the radiator through the pipe 12, the connection being capable of being opened and closed by means of a valve 53.

In the normal position the valve 42 is open and the diaphragm 28 is straight or positioned on a common plane, and water having been supplied to the radiator the valves 31 and34 are adjusted to permit the proper escape of fuel or gas to the burner. The burner being ignited the water in the radiator is heated and when heated to a certain degree, or when steam is generated, the pressure created due to the expansion of the water will tend to move the valve toward its seat 43 by flexing the diaphragm 28 outwardly against the action of the spring'46. Should the pressure be excessive and thereby necessitate a decrease in. the fuel supply, when the valve is moved outwardly toward its seat 43 the gas will be permitted to slowly escape to the burner, and since the valve 42 loosely fits its seat the gas will not be entirely cut oif but the flame will be reduced sufiicient to permit further excessive heating ofthe water or generation of steam, and in this manner a uniform temperature will be retained in the room or rooms which are heated.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is 1. In a pressure valve, the combination with a reservoir adapted to contain water under pressure and having a water supply connection and a threaded opening near its lower portion; of a diaphragm casing comprising two sections secured together, a diaphragm held between said sections and disposed normally reetilinear, one section having a reduced threaded extension for engagement with the threaded portion of the reservoir, the other section of the diaphragm casing having an angular fitting integral therewith and provided with a valve seat, a valve connected to the diaphragm at the central portion thereof and operating through said diaphragm sect-ion to coiiperate with the valve seat and regulate the size of the passage therethrough, a supply pipe connected with one end of said angular fit ting, and a burner communicating with the other connection and receiving a supply of fuel 'therethrough for the heating of the water in the reservoir, variation in the internal pressure in the reservoir due to the heating of the water at various temperatures .ried by the diaphragm moavev pressures on the diaphragm.

2. A. thermostatic valve comprisin a case ing, a diaphragm in the casing, sai casing having an opening with-anextension adapted for attachment to a radiator, an auxiliary valve integral with the casing and havin a seat, a cylindrical valve connected to he diaphragm and operating through the casing to separate the interior of the diaphragm from the auxiliary valve, a spring normally maintaining the diaphragm rectilinearand the valve unseated, said valve carloosely cooperating with said seat to partly cut ofi' the supply when seated, a supply municating the name to'this specifi'cationin the pipe for fuel com- 1 with the auxiliary valve, a

burner to at the water in the radiator, an

outlet pipe also communicating with said auxiliary valve and with the rner, said valve being shifted by the flexing of the diaphragm under excessive pressure to restrict flow of fuel to the supply ipe; and a gage glass havin a filling mem er for supplying water to t eradiator.

In testimony whereof I have signed my presence of two subscribing witnesses.

LDRED LEWLESS. Witnesses:

Louis SCHAEFER, JOHN J. MoGomRu. 

